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Posted to issues@impala.apache.org by "Riza Suminto (Jira)" <ji...@apache.org> on 2025/01/03 23:26:00 UTC

[jira] [Created] (IMPALA-13641) Parquet specific counters should not exist if not reading any parquet file

Riza Suminto created IMPALA-13641:
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             Summary: Parquet specific counters should not exist if not reading any parquet file
                 Key: IMPALA-13641
                 URL: https://issues.apache.org/jira/browse/IMPALA-13641
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 4.4.0
            Reporter: Riza Suminto
            Assignee: Riza Suminto


While working on IMPALA-13636, I notice that ParquetUncompressedBytesReadPerColumn and ParquetCompressedBytesReadPerColumn exist in runtime profile even when no parquet file is being (all scan text files). These counters should be lazily created only if HdfsScanNodeBase::bytes_read_per_col_ is not empty.



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